Vania



C. F. KRAUSS ET AL LOCOMOTIVE TRUCK I I] M U Original. Filed April 2,1929 F 1 l ql HHIl I I I'I HI h P H II H I I I I I l l u r H Hu l HQHUWHAug. 5, 1930.

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v C. F. KRAUSS ET AL Aug. 5, 1930. LOCOMOTIVE TRUCK Re. 17,764

5 Sheets-Sheet 5 Original Filed April 2, 1929 Z22 M677 {62's r-ClQ/ZGSEKTd U55 Reissued Aug. 5, 1930 UNITED STATES PATEFNTIFOFFICE,

CHARLES E. xmmss, or AMBLER, AND HENRY K. mmwrcigor DARBY, PENNSYL-VANIA LOCOMOTIVE TRUCK Original No. 1,750,527, dated March 11, 1930,Serial No. 351,964, filed April 2, 1929. Application for reissue filedJune 19, 1930. Serial No..462,385.

cylinders.

The invention also relates to certain details of construction describedhereinafter.

In the accompanying drawings:

Fig. 1 is a plan View of our improved fourwheeled truck;

Fig. 2 is a side view;

Fig. 3 1s a transverse sectional View on the line 3.-3, Fig; 2;

Fig. 4 is a plan View of one side of the truck;

Fig. 5 is a sectional view on the line 8-8, Fig. 4;

Fig. 6 is a side view of one of the equaliz ing beams;

Fig. 7 is a plan view of the equalizing beam and Fig. 8 is a detachedside view of one of the semi-elliptic springs.

1 is the truck frame, made as an integral casting and consisting ofdouble side members 2 and 3, cross-ties 4, and end melnbers 5. Thepedestals 6 for the axle boxes 7 are formed on both side members of theframe. The axles 8 are located in the boxes as shown in Fig. 2.

Suspended by links 21 from the cross-ties 4 of the frame is the bolster9 .on which is formed the centre bearing 10 of the usual construction.

The two side members 2 and 3 at each side of the truck frame 1 areconnected at the top by a web 11, which forms a seat for the spring 12,which is of the semi-elliptic type in the present instance.

An equalizing beam and spring cradle 13 is located in the space betweenthe two side members 2 and 3 of the frame 1. This beam extends over andrests upon the boxes 7 located between the pedestals of the frame 1. Theends 14 of the beam are rounded as shown to allow the beam to freelyrock on the boxes.

The equalizing beams 13 are made as shown are seats 16 for the ends 17of the spring 12.-

On each seatis a seat-block 18 having a rib fittinga recess in a shoe 19secured to the spring. r

In the present instance the side walls 20 of the equalizing beam 13 areextended as shown in Fig. 3, so as to project into the recess formed bythe two side members of the frame, so that they telescope with saidframe and form an enclosure for the spring.

The sides of the truck frame between the two sets of pedestals are muchlower than the centre thereof, as shown in Fig. 3, and the springs arelocated very low. The equalizing beams that support the springs" aredepressed at the centre. This construction allows the springs to beproperly supported by the beams, and in turn to properly support theframe. Furthermore, the springs are protected bythe frame and theequalizing beams as shown in Fig. 2. I

By designing the truck in the manner described, it can be used underlocomotives having large cylinders, the lower portions of which occupythe space formed by depressing the side members of the truck frame andtheir connected parts.

The bearing boxes may be provided with the ordinary hexagonal bearingsas shown in Fig. 2 or with roller bearings, as desired.

We claim 1. The combination in a four-wheeled truck, of a frame made asan integral casting and having two side members at each side thereof;cross-ties and end connecting members; pedestals for axle boxes, saidmembers being connected by a web at the centre; an equalizing beamlocated below the opening in the frame and extending into the openingand having portions extending above and resting upon the boxes, saidbeam having spring seats; and a spring, the ends of which rest upon thespring seats and the centre of which is adapted to a seat in the frame.

2. The combination in a four-wheeled truck, of a frame having a bodyportion and pedestals for axles; two side members spaced apart anddepressed below the tops of the axle boxes; depressed equalizing beams,each beam located in the depressed portions of the side members andextending between the side members at each end and resting upon theboxes; spring seats on the beam; and a spring located on the springseats and carrying the frame. v 3. The combination in a four-wheeledmachete-frame having two depressed side members at each side; a web attheir upperedges forming a recess; an equalizing beam depressed at itscentre, the ends being"extended to restupon the topsof axle boxes, thebeam having a' cavity therein; sprin seats at each end of the cavity,the sides 0' the beam being extended into the recess of the. frame; anda spring located on thespring seats and'supportingthe frame, thesidemembers of the frame and the sides of the beam enclosing '01 thespring.v p i 4:. equalizing beam for a four-Wheeled truck, having a depressedcentral portion open at the centre, and having spring seatsat each endof the open centreupon which 5 a spring can be mounted.

5. The combination in a four-wheeled truck, of a frame having two setsof pedestals and having: innerand outer side members spaced apart andconnected at the-upper end 3 by a Web ;abox mounted between thepedestals of each set; equalizing beams located in the spacebetween theside members and extending under the Web. and; over the'boxes; v and asemielliptic spring mounted longitu'di- :15: nally on thebeaIn-andsupporting the truck frame, the beam and the side members of theframe-enclosing the; said sprin I, I I, S. F-i RAUSS- HENRY K; HARWICK.-

